"There's unscripted and then there's what we did in the other movies - which is technically not strictly unscripted. It's such a unique entity unto itself," he explained. "Unless you go out with real people and you do those guerrilla tactics. Be that as it may, we were really interested in keeping it as spontaneous and as urgent as those movies were."

Charles continued: "We wanted to give Sacha some real world experience with the character because that's a way in the process to start to understand how the character behaves. So, we did a series of interviews in a hotel room - very Borat and Bruno-like, actually.

"We had random people come in to sit down and talk to him, knowing nothing about it, that were absolutely hysterical. Those were totally unscripted."

The filmmaker went on to say that he does not worry about audiences comparing The Dictator to Baron Cohen's previous work.

"In situations like this, you really can't win anyway. There will be people, now, that will complain that it's not like the other movies, and there will be people who complain about the opposite. I sort of accept that," he said.

"The key to me is, are we delivering the goods, ultimately? And I think, for sure, they do with this movie - hopefully as much as they had with the other movies.

"But, you never have the element of surprise that you have in something like Borat. You always have expectations that are very hard to meet."